baber/WOPTO huggingface dataset:
Patent GB-1294303-A (GB)
Title: Improvements in or relating to attachment means
Inventor: FISH DANIEL CECIL EDWARD
IPC: B63B21/44
Filed: 1968-12-24
Abstract: 1294303 Air cushion vehicles HOVERMARINE TRANSPORT Ltd 13 Feb 1970 [24 Dec 1968] 61499/68 Heading B7K [Also in Division E2] A gas cushion vehicle comprises a flexible skirt 5 consisting of a flexible sheet 15 having a beaded edge portion which is clamped by bolts 26 and nuts 25 between an angle member 20 secured to a body 4 of the vehicle and a strip 24 of aluminium alloy or of flexible plastics so that a bead 23 on the edge portion abuts an edge of the strip. To allow movement of the skirt, holes therein for the passage of the bolts may be elongated and each bolt may be provided with a nylon distance piece. Two beaded edge portions of the skirt may be bolted between two strips, or one beaded edge portion may be bolted between one strip and a skirt edge portion without a bead, Figs. 6, 7 (not shown). Air for the cushion is drawn from the air by a compressor driven by variable speed gearing through a duct 9 to the cushion. The skirt 5 is connected to a series of individually deflectable skirt members. Each U-shaped skirt member has side portions the inner corners of which are detachably secured to the body 4 by flexible tie members. The rear skirt comprises an inflatable bag 10 and a series of skirt members 11. The sides of the cushion are contained by structures 30.
Patent GB-1291719-A (GB)
Title: Improvements relating to rotary roller pumps
Inventor: SADLER HARRY JOHN
IPC: F04C2/344
Filed: 1969-12-20
Abstract: 1291719 Reciprocating pumps; rotary positive displacement pumps HYPRO Inc 20 Dec 1969 62183/69 Headings F1A and F1F A pump comprises rollers 54 reciprocably mounted in radial slots 52 in a rotor 51 whose axis is offset from that of a cylindrical casing 11 such that during rotation, rollers 54 function as vanes in pumping spaces defined between the rotor 51 and casing 11, and function as pistons in pumping chambers formed by slots 52, liquid entering and leaving the pumping spaces and chambers via ports 30, 31 in an end wall of the casing. Slots 57 in rotor 51 provide communication between the pumping spaces and the ports 30, 31. Slots 57 are arranged in pairs on either side of a separating web, Fig. 6 (not shown). A leakage-collecting port 32 is connected to the pump inlet, Fig. 4 (not shown). The pump casing may be mounted directly on a driving motor casing, Fig. 1 (not shown), or may be mounted on a bracket with the drive-shaft 20 fitted with a pulley, Fig. 5 (not shown). In Fig. 1 (not shown), slots 57 are replaced by slots which do not communicate with roller slots 52 and which have rounded-off leading edges to prevent cavitation.
Patent GB-769315-A (GB)
Abstract: 769,315. Electric selective signalling. METROPOLITAN VICKERS ELECTRICAL CO., Ltd. Jan. 19, 1955 [Jan. 25, 1954], No. 2199/54. Class 40 (1). In a telemetering or remote control system in which a number of channels are sampled in sequence, the signals in each channel being in form of pulses, thereby forming a time division multiplex pulse train, the dynamicizer (transmitter) and the staticizer (receiver) are synchronized by dividing each frame of the multiplex signal into a number of blocks each of which is defined by a marker pulse and contains 8 of the channels, except for a synchronizing block which consists entirely of 9 space (or mark) signals. This enables the receiver to use a dekatron to detect the synchronizing block by counting the channels, because the dekatron will be reset by block marker pulses (and by mark signals) and can only reach its final taiget at the end of the 9 " spaces " of the synchronizing block, when a synchronizing pulse is generated. The pulse train is applied at A, Fig. 2, to a cathode-coupled pair of valves V1, V2 which are gated by a valve V3 under control of a local oscillator. Negative pulses corresponding.to the " marks " of the train are obtained at C from V1 and negative pulses corresponding to " spaces " are obtained at D from V2 and applied via a potential divider R6, R7, Fig. 3, to one guide electrode G1 of a dekatron V4; and via an integrating network R8, C2 to guide electrode G2 so that each incoming " space " transfers the discharge of V4 to a successive cathode. In a normal signal block the ninth cathode cannot be reached because either a marker pulse or a channel signal " mark " pulse will first occur, and such a pulse is applied at C (from V1) to cathode K10 to reset the dekatron. By the end of a synchronizing block, however, the ninth cathode K9 is reached and this allows a gating valve V5 to conduct. The original pulse train is also applied at A to V5, is differentiated by C3, R11, and the differentiated "spike" of the leading edge of that marker pulse which terminates a synchronizing block is then passed to the output H.
Patent GB-2027128-A (GB)
Title: Paint-spray pistol
IPC: F01C21/00
Filed: 1978-08-02
Abstract: A rotating atomizer head (not shown) is attached to one end of a rotating shaft (20) whose other end is driven by the drive shaft (18) of a rotary air-pressure motor (12, 13, 14), the interior of the housing 10 being divided into two separate chambers by a wall (11) made of a non- magnetic material. Each shaft is provided at its end adjacent the wall with a permanent magnet (19), (21). Thus, owing to magnetic coupling between the two magnets, the atomizer head is rotated by the motor drive shaft but it is not possible for lubricating oil from the motor to reach the atomizer head. <IMAGE>
Patent GB-2004030-A (GB)
Title: Flow independent air control valve
IPC: F01N3/22
Filed: 1978-08-09
Abstract: An air control valve 10 for use in a vehicle emissions control system includes an inlet 16, a pair of outlets 18, 20, and a valve mechanism 22 which normally permits communication from the inlet 16 to one of the outlets 18, but which is actuable to another condition which permits communication from the inlet 16 to the other outlet 20. The valve mechanism 22 is actuated by one of a pair of opposing fluid motors 44, 58. The fluid motors 44, 58 are designed so that the pressure forces acting on the valve member 34 also act on the fluid motors 44, 58 in such a way that the effect of the pressure forces on the valve member 34 is cancelled. Therefore, the size of the actuating fluid motor may be reduced, since it need only overcome the inertia and spring forces acting on the valve mechanism. <IMAGE>
Patent GB-2029010-A (GB)
Title: Distinguishing Between Liquid and Gaseous Fluids in Compressors
IPC: G01N7/00
Filed: 1978-08-23
Abstract: The method of distinguishing between liquids and gases using the property of compressibility to discriminate between them. A fluid is forced through three pressure regions each of the second and third regions being at a lower pressure than the previous region. The fluid is forced through nozzles between the regions. The pressure in the intermediate pressure region is sensed to distinguish between liquids and gases. A control valve is disclosed which utilizes the above method and includes a movable member (4) responsive to the intermediate pressure and operative to open and close an orifice (6). The control valve may be located in a compressor so that the valve allows condensed fluid such as water or oil to be removed from the compressor tank. The valve causes the outlet orifice to close when the liquid has been removed and gas is adjacent the valve. <IMAGE>
Patent GB-2028973-A (GB)
Title: An explosion protection device
IPC: F16K17/00
Filed: 1978-08-23
Abstract: An explosion protection device comprises a cylindrical housing 10 which is connectable at one end 13 to a primary unit and which has openings at both ends 13, 14 and, in between, a circumferentially extending inwardly directed shoulder. The protection device also comprises a closure 12 supportable with respect to the housing and being movable under the influence of a rise in pressure resulting from an explosion in the primary unit from a normally open position in which it is spaced from said shoulder to a closed position in engagement with the shoulder. Fins 18 are arranged to rotate the closure during normal use. The closure may be supported on a spindle 17 or hung from its apex by e.g. a chain. <IMAGE>
Patent GB-2049797-A (GB)
Title: Pivotal Mountings
IPC: B60R1/076
Filed: 1979-01-15
Abstract: This invention relates to pivotal mountings particularly but not exclusively for motor rear view mirrors. Mountings for motor rear view mirrors must be able to deflect in both forward and rearward directions under the action of a certain force and the mounting 10 shown comprises a base 11 and a mirror housing carrier 12. The base 11 has a pair of spaced parallel rod elements 16 held by means of catches 30 in recesses 27 on the carrier 12. The catches 30 are constructed such that an impact of a certain force on the carrier 12 frees the catches 30 adjacent the points of impact of the force and the carrier 12 pivots about the rod element 16 which is still held by the remaining catches 30. The catches 30 are arranged as interlocking oppositely facing pairs such that the freeing of one catch 30 of a pair precludes the freeing of the other catch 30 of the pair. Means may be provided for releasably locking the carrier 12 in its pivoted position. <IMAGE>
Patent GB-2023931-A (GB)
Title: Shakeproof capacitor
IPC: H01G4/38
Filed: 1979-06-07
Abstract: A shakeproof capacitor comprising a capacitor roll (2) in a casing (1) with part of its surface rigidly anchored (5) inside the casing, while the other parts of the capacitor roll are embedded in elastic or resilient material (3,4). The terminal wires (7) are likewise embedded in the elastic material and of elastic design. The electrical properties are stable under extreme outer stresses. A second embodiment is described in which two capacitor rolls are arranged inside the casing and electrically connected in series and provided with different dielectrics. <IMAGE>
Patent GB-2025325-A (GB)
Title: Convertible Offset Printing Press
IPC: B41F7/02
Filed: 1979-07-12
Abstract: A printing unit for a rotary offset printing machine comprises a central impression cylinder (69) and four printing mechanisms mounted in bores in side wall members and each comprising a respective plate cylinder (65 to 68) and a respective blanket cylinder (61 to 64), the blanket cylinders (61 to 64) being journalled in eccentric bushes (74 to 77). The blanket cylinders (61 to 64) are selectably settable against the relatively small impression cylinder (69) for satellite printing; or they can be settable against each other in pairs to allow for either horizontal or vertical web paths, the impression cylinder being withdrawn axially out of contact with the blanket cylinder. Alternatively, the apparatus allows different printing mechanisms for horizontal and vertical web paths to be selectively mounted since the bores in the side wall member will accommodate either. <IMAGE>
Patent GB-2025712-A (GB)
Title: An electrical fitting
IPC: H02G3/14
Filed: 1979-07-19
Abstract: An electrical fitting comprising a conventional metal connecting box (10) is connected to a surface, to stand proud thereof, and wall-mounted conduit is connected to the box (10), extending through apertures provided by knock-out portions (16) of the connecting box. A plastics shroud (30) which in larger is cross sectional area than the connecting box and marginally taller than the connecting box, is provided with complementary knock-out portions, enabling the shroud to be fitted over and around the connecting box. <IMAGE>
Patent GB-2055896-A (GB)
Title: Lead alloys
IPC: C22C11/06
Filed: 1979-08-08
Abstract: A lead alloy for electric storage battery grids comprises 0.05 to 0.13% by weight calcium, 0.005 up to less than 1.0% by weight tin, 0.05 to 0.5% by weight bismuth balance lead and impurities.
Patent GB-2038406-A (GB)
Title: Improvements in and Relating to Doors
IPC: E05D3/12
Filed: 1979-12-18
Abstract: A door 15 is hinged by a double pivot 26 and 26' which also provides a latching function. The assembly includes a shaft 16 defining a first pivot axis 26' and interdigitated hinge members 23 on the shaft and 24 on the associated door 15 which are pivotally joined about a second axis 26 parallel to the first axis and a handle 27 is connected to the shaft to control the hinge and the door is provided with a latch (not shown) which is arranged to retain the handle to hold the assembly in a position with the door closed. <IMAGE>
Patent GB-2049227-A (GB)
Title: Control of the speed of a cut-off knife
IPC: B26D5/20
Filed: 1980-01-22
Abstract: The speed of a rotary cut-off knife (12, 14) which cuts sheets of preselected length from a constant speed moving web (16), begins to decrease, at the start of a cutting cycle, to a preselected speed. Pulses representing the speed of the moving web and the speed of the rotary knife are separately counted. When the count of the web speed pulses equals a preselected fraction of the length of sheet to be cut from the web, the rotary knife speed begins to increase to the speed of the knife at the start of the cutting cycle. When the latter speed is reached by the rotary knife, the speed of the rotary knife is controlled in response to the web speed and a position error signal (PE), derived from a preset count which is based on the difference between the desired length of sheet to be cut from the web and the circumference of the rotary knife and is modified in dependence on the knife speed pulses.
Patent GB-2070143-A (GB)
Title: Extendable and Retractable Propeller for Watercraft
IPC: B63H1/24
Filed: 1980-02-19
Abstract: The propeller includes two blades (20, 22) fixed to each other and pivoted on pin (24) to hub 14 such that in the retracted position the blades lie along the axis of shaft 10. Blades (22) may be larger than the other (20) and the pivot pin (24) may be inclined at an angle to a plane perpendicular to the shaft axis. <IMAGE>
Patent GB-2045797-A (GB)
Title: Process for producing oligomers or co-oligomers from butene-2
IPC: C07C11/02
Filed: 1980-03-11
Abstract: In a process for oligomerising or co-oligomerising butene-2 in which the catalyst is a nickel/alkyl aluminium halide system, the used catalyst is employed to isomerise butene-1 to butene-2 in a hydrocarbon mixture which also comprises isobutene. Butene-2 can be readily distilled from the treated mixture.
Patent GB-2045381-A (GB)
Title: Clutch release bearing assembly
IPC: F16D23/14
Filed: 1980-03-14
Abstract: A clutch release bearing assembly comprises a guide sleeve 16 having a cylindrical element 17 which surrounds a tubular guide 13 and by means of which the guide sleeve 16 can slide on the tubular guide with only a small frictional drag. The guide sleeve 16 also comprises a radially extending element 19 which is in contact with a radial flange 5 of an inner bearing ring 1 so as to guide the movement of the bearing in a radial plane. Resilient self-alignment of the assembly on the guide 13 is ensured by the provision of a number of ribs 18, which are an integral part of the cylindrical element 17 of the guide sleeve, and which are in contact with the bore of the inner bearing ring 1. <IMAGE>
Patent GB-2051689-A (GB)
Title: Trash collection and management system for an office environment
IPC: E05F1/10
Filed: 1980-04-09
Abstract: A trash collection, management and disposal system for an office area including covered trash collector containers positioned at heights substantially equivalent to the height of a standard desk top and adapted to receive trash generated in the area. Some of the trash collector containers are mounted on wheels and are equipped with tongue-and-hitch assemblies enabling a plurality of these trash collector containers to be coupled together in a train for towing to a dump site. Dump mechanisms at the dump site pick the trash collector containers up and invert them to empty the trash contained therein. The cover on each collector container is pivotally mounted by a hinge assembly enabling the cover member to be moved to an over center position when it is opened to inhibit its return movement to the closed position. Also, the hinge assembly operates to maintain the cover in an upright position when it is opened, allowing the cover to serve as a backstop for deflecting thrown trash into the container.
Patent GB-2052521-A (GB)
Title: Polyester film containing fine powder of crosslinked polymer
IPC: C08L67/02
Filed: 1980-04-29
Abstract: There is disclosed a polyester film containing from 0.001% to 4% by weight of fine particles of a crosslinked polymer having an average diameter of 0.1 to 5 mu , said fine particles being derived by pulverization from a crosslinked polymer having a specific surface area of at least 1 m<2>/g and a pore volume of at least 0.1 ml/g. The films of the present invention are useful as high grade films and afford many advantages in various applications, for example, as magnetic tapes, capacitors, photography, printing plate making, releasing and the like.
Patent GB-2052892-A (GB)
Title: Electrical sealing device
IPC: H05K9/00
Filed: 1980-06-04
Abstract: An electrical sealing device consisting of a brush-like element comprising a plurality of flexible filaments (1) the majority of which are electrically insulating, the remainder being electrically conductive and distributed substantially uniformly amongst the insulating filaments. The device can be used, for example, for electrically sealing around the edge of a door (6) of an equipment enclosure (5) so as to prevent electromagnetic interference from leaking into or out of the enclosure, or can be used for electrically sealing an aperture (9) through which wires (10) may pass. <IMAGE>
Patent GB-2057284-A (GB)
Title: Rotary disc filter
IPC: D21C9/18
Filed: 1980-06-25
Abstract: A filter for thickening fibrous stock suspensions comprises:-   a) at least two hollow shafts (4, 5) arranged parallel and adjacent to each other in a common filter trough (3), b) a row of hollow filter discs (6, 7) attached to each hollow shaft, the discs on the respective shafts intermeshing between each other, c) discharge chutes (18, 19) located beneath and extending between the discs on the respective shafts to receive filter cake therefrom.   Shafts (4, 5) are connected to suction chambers (12, 15) receiving cloudy and clear filtrate from different sectors of the discs, and clear filtrate is recycled to nozzles (22--24) to spray the filter cake off the discs. <IMAGE>
Patent GB-2081666-A (GB)
Title: Anchoring or tensioning winch
IPC: B66D1/04
Filed: 1980-07-05
Abstract: In a hand winch suitable, for example, for securing loads to a vehicle deck by chains or ropes wound onto a shaft 4, a head 5 for rotating the shaft is of spherical shape forming a palming wheel, that is a hand wheel large enough to be held in the palm and gripped by the extended fingers and thumb of a man's hand. The shaft is turned by hand to take up slack in the chain or rope and tommy bar holes 5' are then used to apply tension which is maintained by a ratchet 7. <IMAGE>
Patent GB-2056635-A (GB)
Title: Precompressed air firearm
IPC: F41B11/68
Filed: 1980-07-08
Abstract: A firearm using precompressed air comprises a frame 1, a barrel 2 mounted on said frame and having a breach closable against a stationary shoulder and a displaceable piston 8 for the intake of air into a cylindrical chamber 7 and compressing it in a compression chamber closable and openable by means of a mushroom-shaped valve 13. The compression chamber communicates with the bore of the barrel through a discharge bore in said stationary shoulder, the opening and closing of said valve being controlled by a spring and a release mechanism or assembly actuated by a trigger 17, said mechanism or assembly being activated by means of a mounting slide 38 connected to said barrel. The barrel is guided on the frame from a closing position against the stationary shoulder to an opening position and vice versa. The piston is connected to the barrel via a pin 22' and slot 24 mechanism so that the barrel is moved to the open position only during the final part of the forward air intake stroke of the piston and to the closed position against the shoulder only during the final part of the rearward compression stroke. <IMAGE>
Patent GB-2082219-A (GB)
Title: Water closet dual flush
IPC: E03D1/14
Filed: 1980-08-08
Abstract: An arrangement for converting a single flush cistern of bell or other type to dual flush includes a valve rotary or other (25) which controls the admission of air into an aperture drilled in the wall of the bell (12), the aperture being at a level 32 which defines partial flush level. A valve operating link (27) is interposed between the bell lifting lever (22) and the actuating chain (29). A stiff coupling wire (30) connects the valve operating link (27) to the valve (25). The air valve (25) is normally open. For a partial flush the chain (29) is pulled and released so that the air valve is momentarily closed and then reopened. The partial flush may be adjustable. For a full flush the chain is pulled and released, and then lightly pulled and held. The specification also discloses various forms of valve-operating links (27), some with rack and pinion mechanism, others with bell crank, and also discloses a variety of rotary, linear and other valves. <IMAGE>
Patent GB-2066559-A (GB)
Title: Fluorescent lamp with reduced electromagnetic interference
IPC: H05B41/00
Filed: 1980-12-22
Abstract: The electromagnetic interference produced by arc discharge lamps particularly fluorescent lamps operating at frequencies in excess of 15,000 Hz, is reduced by providing a current path external to the envelope containing the discharge, the current flow in the path being oriented so as to produce a magnetic field generally in opposition to the magnetic field generated by the current in the arc discharge. The present invention is particularly applicable to circular fluorescent lamps, with a centrally disposed ballast operating at relatively high frequencies, Fig. 1. In Fig. 2 the external current path is in the form of a cancellation loop 20 which may be a conductive translucent coating of tin oxide, with or without indium, disposed on the glass envelope. Various other embodiments are described, for example, the diameter of the cancellation loop may be less than that of the arc discharge path and a transformer used on multiple windings in the loop employed to give the generated magnetic field a sufficient value to cancel that of the arc discharge. Arrangements employing straight lamps are also disclosed. <IMAGE>
Patent GB-2070987-A (GB)
Title: Shunt joint surface facing machine for aluminium smelting apparatus
IPC: B24B23/04
Filed: 1981-02-05
Abstract: Abrasive facing disc 37, mounted on resilient blocks 38, is adapted to be oscillated by a small- throw crank arrangement 45 driven from a pneumatic motor 40 whilst being pressed against shunt joint surface 22 of a riser bus 23 by compressed air supplied by hose 58 to the space behind the disc 37 as defined by backing dish 38. Drive casing 32 carrying the blocks 38 is located by a frame including uprights 25 and abutment members 24 through which expansion bolts 52 locate into bolt holes 49 in the user bus 23. Handles 47 enable the casing 32 and disc 37 to be traversed across the surface 22. The apparatus may be reversed and fitted to shunt block 21 by its bolt holes 48 for facing its surface 20, in which case the weight of the apparatus may be supported from above using hole 61 and if necessary the motor 40 can be reversed on flange 33 to avoid obstructions. In a development, a rotary cutting disc is carried by a carriage adapted to be traversed mechanically. <IMAGE>